.screen {
    height: 100vh;
    width: 100vw;
    background: url("./images/bg.png") no-repeat;
    background-size: 100% 100%;
    color: #29fcff;
    .box {
        position: fixed;
        width: 1920px;
        height: 1080px;
        top: 50%;
        left: 50%;
        transform-origin: left top;
        .box_header {
            height: 40px;
            margin-bottom: 10px;
        }
        .box_content {
            height: calc(1080px - 50px);
            display: flex;
            .box_content_left {
                width: 25%;
                height: 100%;
                display: flex;
                flex-direction: column;
            }
            .box_content_main {
                flex: 1;
                display: flex;
                flex-direction: column;
            }
            .box_content_right {
                width: 25%;
                height: 100%;
            }
        }
    }
}
